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Piston Ring NSN 2805-00-277-2933

Item Description

A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

NSN 2805-00-277-2933 NSN: 2805-00-277-2933

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Features and Characteristics

Cross Sectional Shape
Convex face, double scraper, ventilated oil control
Ring Style
Concentric
Radial Wall Thickness
0.1770 inches
Overall Width
Between 0.2400 inches and 0.2485 inches
Standard Bore Diameter
4.250 inches
Joint Style
Vertical joint
Oil Passage Type And Quantity
8 slot horizontally through ring
Material
Iron
FSC
2805 Except Aircraft; And Components Gasoline Reciprocating Engines
NIIN
002772933
NSN
2805002772933

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
21134A
Cage Code:
1ML14
Status:
A
MSDS:
Part Number:
HM21134A
Cage Code:
77237
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8409918000
  • NAICS: 333618
  • SITC: 71391
  • Description: Parts for spark-ignition internal combustion piston engines, nesoi
  • End Use (Code 21100):
    Industrial engines

Q & A

Frequently asked questions for NSN 2805-00-277-2933
What are the manufacturers of nsn 2805002772933?
Does this nsn 2805002772933 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 2805002772933
A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. it is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. it may include an expander. excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Does nsn 2805002772933 contain any precious metals?
Precious metal content is unknown.
Does nsn 2805002772933 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 2805002772933?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
11459
FIIG:
A08400
App. Key:
A
Cond. Code:
2
Status:
A

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